Q:
Truck won’t start and I installed a new battery, I get power but once I try to crank the truck I loose all power.

asked by
Joseph S
on
February 26, 2018

I installed a new battery in my truck last night and it cranked right up but I went out this morning and it won’t crank I get power but when I try to start it I loose all power and it won’t crank or anything

My car has 200000 miles.
My car has an automatic transmission.

Recommended Services

Choose your car for a more accurate estimate

It sounds like you may have a weak battery, a failing voltage regulator or failing alternator. As you may know, the alternator charges the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator pulley. The voltage regulator is a unit that regulates the charging of the battery by the alternator and maintaining a certain amperage while the engine runs. When the alternator is not working properly, this may result in the battery quickly losing charge and the car losing all power. You may also notice a whining sound as a result of the bearings inside the alternator begin to fail. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your charging system.

Get an instant quote for your car

What others are asking

Q: 99 for f150 starts then shuts off immediately

Hi There, I would suggest checking the idle air control valve to be sure it is not sticking. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine...

Q: Speedometer and Odometer stopped working.

The speedometer on your Mustang is electronically controlled. The speedometer is powered on the light green with yellow stripe wire from the #8 fuse in the dash panel fuse box. The grey/black and the green/orange wires go to the vehicle...

Q: I have a 99 Nissan Quest, was overheating replaced thermostat.now van will not turnover or start. what could be wrong?

Continuous overheating can damage the valves and ultimately cause a no start condition. A diagnostic in your circumstance would likely start with a compression test to determine if the cylinders even have compression. Also, the engine should be turned over...